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YOUR RESEARCHMichelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
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camber
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Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
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Leading evidence: 'camber' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'camber' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check alignment' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I had to have the right rear axle replaced because of a bad coupler and torn CV boot..
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
Run 3 degrees of neg camber
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I et 6 to 8 k on my rears but I'm running 3 degrees of neg camber.....
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
Run about 1.5 neg
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I'm running about 1.5 neg on the rears with my H&R coilovers, before I was at around 2.5 and the inside edge of my L rear tire was destroyed.
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
Run tires/wheels long enough
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even at -2.5 on my s2000, they wore fine, but then i rarely ran the tires/wheels long enough to care.
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
Run negative camber
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Suggestion
I think he is saying that many slammed imports are running negative camber, but have no idea what their doing--it's simply a by-product of improperly set-up suspensions.
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
Set these figures
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Suggestion
dont mean to interrupt but...if a car ISNT being tracked and is a daily driver of 15-17000 miles per year, whats the LEAST aggresive you would suggest setting these figures to conserve some on tire wear ?
Michelin PS2.....less than 6K miles....belt is exposed on the inside rear tire...
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39 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Hi all,
When we were installing my modded mufflers, I noticed that the rear driver's side tire has the belt exposed for about 4 inches on the inside of the wheel. I am really pissed. The tires have less than 6K miles on them, and the rest of the tread looks fantastic.
How did this happen? I'm not over or under inflated. And the car "feels" aligned properly. Any other reasons this could happen?
Also, was wondering if Michelin would at least pro-rate another tire for me. I don't think these come with any warranty, and I bought the car with them already on it.
Whattayathink?
J
probably the alignment, the camber could be off and still "feel right". It's very strange that it's only involving a 4 inch patch though, maybe the tire is not balanced correctly?
what??????????? the rest of the tire looks basically new or almost new. If that's the case, I'm going to order Falken FK-452's all around. About 700 for all 4 tires, and they'll perform almost as well and last twice as long, maybe longer. Nice looking tire too...I have them on my '85.
J
Too much negative camber in the rear. You said alignment "feels" good ? Suspension geometry should be checked first . Maybe is something loose or bend? Aggressive camber negative settings are good for track when you load tires heavily on turns but on the street they dont work so well. I presume when you say rest of the tire is perfect you are talking about middle and outside section of the contact patch.
Jon I had a similar experience on my former set of tires (Bridgestone). I had to have the right rear axle replaced because of a bad coupler and torn CV boot.. I think the excessive interior tire wear was caused by this problem. After the dealer replaced the axle, I got new PS2's and had the car aligned the next day. Been good since then.
Your problem sounds like an alignment issue.
Check your alignment with a reputable shop... you'll probably find that the camber is causing the issue....
My last set wore out with the inside having no tread and outside looking new......
just had my ps2's replaced after 22K...actually only the inside were flat, rest of tire was pretty good....but maybe I am driving like an old lady ...NOT!!
I don't think you want O degrees of camber...I believe stock is around 1 degree of neg camber--I could be wrong. I'm running about 1.5 neg on the rears with my H&R coilovers, before I was at around 2.5 and the inside edge of my L rear tire was destroyed.
Good luck.
negative camber = enthusiast
ZERO camber = poser
Getting more than 15,000 miles out of your back tires = poser (or plastic tires)
There sure are alot of Porsche owners who apparently drive for the "bling" effect than for the handling and safety of the car.
stupid post, but about the neg camber equation... i know a bunch of slammed veedubs and civics out there that have mad neg camber that are enthusiasts of varying ilk.
So, are we talking about a rear engined Porsche or a Honda? Are you suggesting that the rear engined Porsche is safer an will handle better with less camber or even ZERO camber?
And why would you suggest that "mad" negative camber is automatically safer or provides for better handling? There IS such a thing as too much negative camber.
I think he is saying that many slammed imports are running negative camber, but have no idea what their doing--it's simply a by-product of improperly set-up suspensions. Hence, negative camber could still = poser.
Either way, I believe that we all agree that zero camber is not the way to go on a 911.
OK....tons of stuff here...thanks all. I see a fight brewing here too....this should be fun.
anyhow, is there a way for me to tell what the camber is before I align? If stock is 1.5, then that's what I'll adjust to. I love the cornering, but don't want to sacrifice tires so fast. Can't believe I have to put new rubber on so cuickly (no cue button).
Keep'em coming.
J
dont mean to interrupt but...if a car ISNT being tracked and is a daily driver of 15-17000 miles per year, whats the LEAST aggresive you would suggest setting these figures to conserve some on tire wear ?
You can safely reduce rear camber to -0.8 degrees and have a safe car for street and highway driving. This will also increase the life of your rear tires.
I don't think you can reduce camber to zero( I could be wrong ) on 996. Never done alignment on one.
But I also have BMW E39 with sport package and had major problem with rear tire wear so when I did alignment I went to most positive I could. Factory spec was -2.17 and now is -1.26 range no longer I have tire wear problem. My Michelines still look like new after 10k on them. Car handles just fine. Trust me my wife never notice the difference. And she loves the fact that we don't buy tires for it every 15k.
Like others said ask for readings before and after. Very important so you know they did something.
And don't worry if numbers are a little off from side to side for example my right side is -1.23 and left is
-1.26 on camber. You will never feel a difference nor the tires. Of course you want to get the numbers as close as you can but sometimes it is impossible.
I just had that problem, driver's side was a little worse.
It WAS the camber. That plus previous owner musta pulled the car using the right suspension, bending the driver's side control arm (idiot!). That added $300 to my bill.
You certainly don't want 0 camber in the back of your 996. I would be very curious to find out what your alignment settings end up being? I am willing to guess that aggressive toe in on that wheel is the cause and not too much negative camber. FWIW: you would be able to "see" too much negative camber.
I had the car aligned a few weeks ago. Rear passenger was previously set to -2.2....hence the awful wear pattern on the inside. Now set to stock at -1.5.
J
i never had too much of an issue with excessive tire wear due to "lots" of neg camber. even at -2.5 on my s2000, they wore fine, but then i rarely ran the tires/wheels long enough to care.
and i know that the ps2s have this more durable tread on the inside to compensate for the neg camber. i believe i'm at about -2 in the rear on my 911. and not sure one can say alignment is key. it' sa combination of things which includes driving style and the roads in your locale.
Are you referring to degrees when you listed -1.5? Stock spec is 15' plus or minus 15'. Those are minutes, not degrees. Each minute is 1/60th of a degree. So it's a range from 0 to -30' or 0 to -0.5 degrees.
Shawn
true, but same case on the m3 and now even my pork4S. all good even with a good amount of neg camber. and i probably drove teh s2000 harder than the german rides.
just callin it like i'm seein it
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